00429nam a2200157Ia 4500 230714s9999 xx 000 0 und d eng 540 GOY Goyal R.N. 164229 Textbook Of Engineering Chemistry 2009 Ane Books pub 373 Rs. 250.00 Goyal R.N. & Goel H. 189990 O:0033309-Oct-2009B:71404-Jul-2009 SS 255 198436 198436